1 Department of Neurological Surgery, University of California, San Francisco, San Francisco, California, USA; School of Medicine, Wayne State University, Detroit, Michigan, USA; Department of Neurosurgery, The University of Texas Health Science Center at Houston, Houston, Texas, USA.
2 School of Medicine, Wayne State University, Detroit, Michigan, USA.
3 Department of Neurosurgery, The University of Texas Health Science Center at Houston, Houston, Texas, USA.
4 Department of Neurological Surgery, University of California, San Francisco, San Francisco, California, USA.
5 Department of Neurological Surgery, University of California, San Francisco, San Francisco, California, USA. Electronic address: manish.aghi@ucsf.edu.